{
  "pools": {
    "A": { "servers": [ { "type": "ErrorRoute" } ] },
    "B": {
      "servers": [
        "127.0.0.1:12345",
        { "type": "ErrorRoute" },
        "127.0.0.1:12346"
      ]
    }
  },
  "routes": {
    "/a/a/": "Pool|A",
    "/b/b/": "HashRoute|Pool|B"
  }
}
